 L for life. You mean the stuff protects you from a bullet or a knife wound? In a way, yes. Swifter than the eye can see, it heals all wounds. The damage is repaired in a fraction of a second. Yeah. My serum is what protects it season. A shot of that stuff and you can't be killed. It sounds screwy, but that dog. Four slugs and not a mark on him. Look, Professor, I'm going to make a deal with you. A deal? Yeah.